baber/WOPTO huggingface dataset:
Patent KR-19990030172-A (KR)
Title: 반도체 장치 및 그 제조 방법
IPC: H01L21/77
Filed: 1998-09-23
Abstract: 결정 구조를 갖는 반도체 층으로 이루어진 하부 게이트형 반도체 장치에 있어서, 소오스/드레인 영역은 제 1 도전층(n + 층), 상기 제 1 도전층 보다 더 큰 저항을 갖는 제 2 도전층(n - 층) 및, 진성 또는 거의 진성 반도체 층(i 층)을 갖는 적층 구조로 구성되어 있다. 이 때, n- 층은 LDD 영역으로 작용하며, i 층은 막 두게 방향에서 오프셋 영역으로 작용한다.
Patent KR-19990036950-A (KR)
Title: 담배향끽미물품의 제조방법
IPC: A24B15/14
Filed: 1998-10-08
Abstract: 잎담배의 추출처리에 의해 얻어진 추출엑기스와 열불가역 응고성 글루칸을 함유하는 고점도수성분산체로부터, 시트상 성형체를 제작하고, 이것을 가열하여 담배추출엑기스 함유 열글루칸 겔시트를 제조하고, 이것을 잘게 썰거나 분말화함으로써 담배 향미발생재를 조제한다.  또 한편 상기 추출처리의 잔사인 잎담배 섬유질잔사로부터 시트상 성형을 제작하여, 이것을 잘게 썰어서 담배향미조정재를 조제한다.  이들 담배향미발생재와 담배향미조정재를 조합하여 사용하여 궐련모양의 물품을 제조한다.
Patent KR-20000025476-A (KR)
Title: Apparatus for fabricating semiconductor device
Inventor: KIM BYUNG JIN
IPC: H01L21/02
Filed: 1998-10-12
Abstract: PURPOSE: An apparatus for fabricating a semiconductor device is provided to minimize the inferiority arisen from a mistake of a worker by inputting a process number of a process working table to a process facility by using a scanner and an attached computer. CONSTITUTION: An apparatus for fabricating a semiconductor device comprises a main computer(220) controlling the fabrication process of the semiconductor device and a process facility(230). The apparatus further comprises: a scanner(200) inputted with information from the external; and an attached computer(210) which is connected with the scanner, the main computer and the process facility receives information from the scanner and transmits the information both to the main computer and to the process facility. If the process facility can not receive the information from the attached computer, a worker outputs the information of the attached computer and proceeds the process according to the output information.
Patent KR-20000025749-A (KR)
Title: Adsl transfer system capable of being groupware between internet connection and subscriber
Inventor: YOU HEE YEOL
IPC: H04L12/66
Filed: 1998-10-14
Abstract: PURPOSE: An asymmetric digital subscriber line transfer system is provided to be capable of be a group ware between subscribers and to minimize an equipment cost of a subscriber by making a plurality of subscribers connect an internet with one internet protocol address by use of an asymmetric digital subscriber line. CONSTITUTION: An asymmetric digital subscriber line(ADSL) transfer system comprises an ADSL home apparatus, a subscriber terminal, an ADSL homeland apparatus, an internet network and a network server. The ADSL home apparatus(104) is installed at each subscriber of the ADSL transfer system. The subscriber terminal(118,120,122) is connected to the ADSL home apparatus, and has a data input/output device and a network card. The ADSL homeland apparatus(112,114,116) is installed at an exchanger of the ADSL transfer system. The internet network(102) is connected to a plurality of internet service providers(100). The network server has a large-volume hard disk and is connected to the internet network through a digital line. If an information request is received from the subscriber terminal, the network server(106) downloads the requested information from a corresponding internet service provider to the hard disk, and then transfers the downloaded information to the subscriber terminal.
Patent KR-20000026100-A (KR)
Title: Chip size semiconductor package of wafer level and method for making the same
Inventor: KIM SANG HA
IPC: H01L23/52
Filed: 1998-10-17
Abstract: PURPOSE: A wafer level chip size semiconductor package directly forms a package on a wafer, is proper to a surface population, and enhances a reliability of a connection state. CONSTITUTION: A wafer level chip size semiconductor package includes a wafer state semiconductor chip(11) having a bonding pad array on a surface. Electrode pattern(13) is formed to be corresponded to a connection pattern of an external circuit on a semiconductor chip surface, and is rearranged with electrodes being electrically connected. A reed(14) includes an internal connection part and an external connection part. The internal connection part(14a) is connected on each electrode of the electrode pattern. An external connection part(14b) connects the internal connection part with the external circuit. Thereby, the wafer level chip size semiconductor package directly forms a package on a wafer, is proper to a surface population, and enhances a reliability of a connection state.
Patent KR-20000026707-A (KR)
Title: Apparatus for manufacturing back plate of plasma display panel
Inventor: CHANG YOUNG JUN
IPC: H01J11/36
Filed: 1998-10-22
Abstract: PURPOSE: An apparatus for manufacturing a back plate of plasma display panel is provided to prevent the deformation of a barrier rib and a discharging space, to enhance luminance, efficiency and productivity. CONSTITUTION: An apparatus for manufacturing a back plate of plasma display panel comprises plural nozzle pipes, and an oscillation generator consisted of first and second drivers. The long axles of the nozzle pipes are arranged parallel to the feed direction of an object to be etched and the pressure of the nozzle pipes are respectively controlled. The first driver generates rotation motion to the nozzle pipes. The second drives receives power from the first driver and generates linear motion to the nozzle pipes.
Patent KR-20000028373-A (KR)
Title: Apparatus for driving variable valve of automobile
Inventor: JIN DONG HUI
IPC: F01L1/34
Filed: 1998-10-31
Abstract: PURPOSE: An apparatus is provided to improve the efficiency during the starting and idling stages by controlling the timing to open and close an intake valve. CONSTITUTION: Electric power(19) is fed from an ECU(electronic control unit,20) to supply voltage to an electromagnet(18) if the period to open and close an intake valve is delayed. An MR(Magneto-Rheological) fluid(15) is in a solid form to keep the combined state with a cam(12) on a clutch plate(13) by increasing the viscosity of the MR fluid stored in a storage groove(13a) of the clutch plate near the electromagnet. Therefore, the cam reaches the default position exactly by interlocking itself with the clutch plate through the rotation of a camshaft.
Patent KR-20000028470-A (KR)
Title: Apparatus for controlling speaker angle
Inventor: JANG SE JIN
IPC: H04R3/00
Filed: 1998-10-31
Abstract: PURPOSE: An apparatus can control the angle of a speaker installed in a sound card embedded speaker system. CONSTITUTION: An apparatus controls the angle of a speaker(400) installed in a sound card embedded speaker system right and left or up and down by adopting a speaker angle control unit to control the angle of the speaker. The apparatus increases the availability of users and also provides an audio signal of various form capable of corresponding to a taste of each viewer actively. The apparatus includes: an interface block(302) serial-interfacing an audio data and a synchronous data for controlling angle provided from an A/V(Audio/Video) apparatus body; an audio playing block(304) providing the audio data received through the interface block after processing through the speaker into an output signal and generating a driving pulse for controlling angle when the synchronous data is received; a motor driving block(306) generating a motor driving signal; and a motor(308) controlling the angle of the speaker.
Patent KR-20000031329-A (KR)
Title: Winch for elevator
Inventor: LEE GIL HAENG
IPC: B66B7/00
Filed: 1998-11-05
Abstract: PURPOSE: A winch for an elevator is provided to stabilize a load and to reduce the shape length of the winch by forming a supporting shaft into a single shaft and by installing a sheave on the outer diameter of a motor rotor. CONSTITUTION: A winch is composed of supporting stands(11)(11') installed in both sides having a certain distance, a stator(12) placed between the supporting stands, a supporting shaft(13), a cylindrical tube shaped rotor(14), a sheave(15) inserted in the outer diameter of the rotor, a housing(16) rotating while supporting the sheave and the rotor, and a disk electromotive brake(18) braking the rotation of the sheave by installing on one horizontal face of a rotor shaft direction to be removable. Therefore, porosities between the rotor and the stator are in a line by installing the supporting shaft to be one. Then the winch reduces the clogging situation of an electromotive motor and makes the process simple.
Patent KR-19990045138-A (KR)
Title: 적응 디지털 무선 통신 시스템
IPC: H04W88/06
Filed: 1998-11-07
Abstract: 본 발명은 적어도 하나의 프로그램 가능한 장치를 재프로그래밍 함으로써 재구성될 수 있고,  따라서 시변 RF 채널의 이용가능한 대역을 더욱 효율적으로 사용하며 신축적 적응 디지털 통신 시스템을 제공하는 적응 디지털 무선 통신 구조를 포함한다. 어떤 실시예에서, 프로그램가능한 장치는 무선 통신 시스템의 송신기 또는 수신기의 디지털 통신 프로세싱 기능을 수행하기 위해서 프로그래머블 로직 디바이스(PLD)를 사용한다. 본 명세서에서는, PLD는 프로그래머블 로직 디바이스의 패밀리를 나타내는 일반적인 용어이며, 이러한 패밀리의 예는 프로그래머블 어레이 로직(PAL), 복합 PLD(CPLD) 및 필드 프로그래머블 게이트 어레이(FPGA)이다. 상기 구조는 디지털 통신 프로세싱 알고리즘의 전체 또는 어떤 것이 PLD를 재프로그래밍 함으로써 수정될 수 있다는 의미에서 재구성 가능하다. 디지털 통신 시스템의 구조는 다음의 파라메터들, 즉, 채널 심볼율, 점유된 대역, 변조기술 및 다중 액세스 기술에 의해 특징지을 수 있다. 재구성은 디지털 통신 시스템의 구조의 수정이며, 예로서 무선 통신 기지국이 무선 스펙트럼의 특정 부분을 위해 사용되는 무선기 구조를 변경하고자 하는 경우에 외부 콘트롤을 통해서 PLD를 재프로그래밍 함으로써 달성될 수 있다. 재구성은 또한 예로서 채널 사용자의 수의 효과, 제공된 부하(load), 서비스 척도의 품질, 또는 음성, 데이터, 비디오 및/또는 트랙킹을 포함하여 원하는 응용의 특징과 같은 시변 무선 채널 상태에 의존하여 디지털 통신 시스템을 동적으로 재프로그래밍 함으로써 발생될 수 있다. 시변 무선 채널 상태를 특정하기 위한 방법이 기술되었으며, 또한, 그러한 측정결과가 어떻게 재구성에 영향을 주는가 하는 것이 기술되었다. 본 발명은 디지털 통신 시스템을 구조가 어떻게 현재의 채널 상태에 기초하여 또한 외부 콘트롤을 통해서 재프로그래밍될 수 있는가 하는 것을 기술한다.
Patent KR-20000034241-A (KR)
Title: Data interface apparatus for pdp
Inventor: HU DEUK HYUN
IPC: H04N5/66
Filed: 1998-11-28
Abstract: PURPOSE: A data interface apparatus for PDP(Plasma Display Panel) is provided to perform a conventional gradation process and a modified gradation process adequately. CONSTITUTION: A data interface apparatus for PDP(Plasma Display Panel) includes a firstdata real locate (106), a lookup table(112), a second data real locate (110), a data driver, and a scan driver. An electrode of a panel is addressed through a digital data A/D converted and reallocated into a sub field data. A discharge sustain pulse according to the digital data is applied on a scan/sustain electrode. The first data real locate (106) reallocates the A/D converter n bit input digital data into n sub field data. The lookup table(112) includes n+m sub field data according to the n sub field data. The second data real locate (110) the n bit sub field data into corresponding n+m bit sub field data. During a normal mode, the data driver takes the n sub field data reallocated in the first data real locate (106). During a modified mode, the data driver takes the n+m sub field data reallocated in the second data real locate (110).
Patent KR-20000037760-A (KR)
Title: Method of fabricating low-temperature re-heated directional electrical sheet improved in productivity
Inventor: HAN GYU SEOK
IPC: C21D8/12
Filed: 1998-12-02
Abstract: PURPOSE: A method of fabricating a directional electrical sheet is provided to improve productivity as well as to secure decarbonation in a short time by annealing the electrical sheet at the final thickness. CONSTITUTION: A slab is composed of 2.0-4.0wt[ of silicon, 0.006-0.030wt% of aluminium, 0.007-0.013wt% of nitrogen, 0.025-0.055wt% of carbon, 0.3-1.0wt% of copper, less than 0.32wt% of manganese, 0.02-0.2wt% of chromium, less than 0.007wt% of sulfur and the rest of iron and other impurities. The slab is re-heated at a low temperature of 1250-1330°C and hot-rolled. After that, the slab is cold-rolled twice including a process of treating the slab at a temperature of 900-1100°C in a mixed gas atmosphere of dried hydrogen and nitrogen. After annealing the slab at a temperature of 790-850°C in a wet atmosphere, the slab is coated by an annealing parting agent and the entire area is in the mixed atmosphere of hydrogen and nitrogen. The directional electrical sheet is manufactured by finally annealing the slab at a high temperature.
Patent KR-20000039420-A (KR)
Title: Method for selecting antenna in mobile communication system applying dispersion antenna
Inventor: HWANG WON TAEK
IPC: H04B7/26
Filed: 1998-12-12
Abstract: PURPOSE: A method for selecting an antenna in a mobile communication system applying a dispersion antenna is provided to minimize an interference by separating the signals received in a base station from each dispersion antenna by antenna and transmitting information by antenna according to the position of the user with using information. CONSTITUTION: A base station receives a request for calling through an access channel from the mobile station after having all antennas at the connection state, and searches signals from each antenna for selecting an antenna of highly efficiency according to the searching result. The base station makes database with an antenna adjacent to the selected antenna having best efficiency in a group of transmission substitution and transmits the signal to the mobile station through the antenna of highly efficiency. The mobile station transmits information to the base station according to a protocol related to the signals transmitted from the base station. The base station transmits information by using the antenna of highly efficiency among the group of transmission substitution according as whether a user signal is below predetermined threshold value by receiving information from the mobile station.
Patent KR-20000040025-A (KR)
Title: Call transfer method in private branch exchange
Inventor: HONG PIL O
IPC: H04M3/54
Filed: 1998-12-14
Abstract: PURPOSE: A call transfer method in the private branch exchange is provided to cancel a wrong transferred call and to forward a transferred call back to a person who transferred the call. CONSTITUTION: A first station line subscriber picks up a phone when a call is generated to the first station line subscriber from a second station line subscriber. As the second station line subscriber requests call transfer to other private branch exchange subscriber, the first station line subscriber pushes the transfer button to connect the second station line subscriber to other station line subscriber. The first station line subscriber dials a phone number of the private branch exchange subscriber, and stores the phone numbers of the second station line subscriber and the other station line subscriber. Recognizing wrong forwarding, the first station line subscriber tries recalling to the second station line subscriber by pushing the forwarding cancellation button.
Patent KR-20000042158-A (KR)
Title: Automatic control apparatus of under frequency relay
Inventor: LEE JIN RAK
IPC: G05F1/00
Filed: 1998-12-24
Abstract: PURPOSE: An automatic control apparatus of an under frequency relay(UFR) is provided to improve a reliability to a power supply by controlling a plurality of breakers installed at a service wire corresponding to an UFR. CONSTITUTION: An automatic control apparatus comprises first to third UFRs(1-3), a selector(4), a digital frequency meter(5), a control unit(6), first to third switches(7-9) and an alarm part(10). Each of the first to third UFRs(1-3) has a predetermined sense frequency, and outputs an electric signal when a frequency of a corresponding service line corresponds to the predetermined sense frequency. The selector(4) is to make a user switch on and off the first to third UFRs(1-3), and consists of three on switches(S2,S4,S6), three off switches(S1,S3,S5), and a switch(S7) for setting the yes or no of a remote control(SCADA). When a low frequency abnormality of a power system is resolved and is restored into an original state, the digital frequency meter(5) outputs a restoration signal for restoring a breaker related thereto in an operation order. A control unit(6) switches on and off service lines corresponding to the UFRs(1-3) and installed breakers according to whether the first to third UFRs(1-3) are operated. The first switch(7) switches off breakers installed at service lines corresponding to the UFRs(1-3), and the second switch(8) switches on breakers installed at service lines corresponding to the UFRs(1-3). The third switch(9) is switched on and off according to a control signal applied from an output terminal(6c) of the control unit(6).
Patent KR-20000042374-A (KR)
Title: Solid circulating method and apparatus between fluidized bed desulfurization reactor and regenerative reactor for high temperature dry desulfurization using nonmechanical valve
Inventor: WI YEONG HO
IPC: C10K1/32
Filed: 1998-12-24
Abstract: PURPOSE: A solid circulating method and its apparatus for allowing a solid to smoothly flow down, preventing a backflow gas and carrying out continuous desulfurization and regeneration are provided which improve desulfurization efficiency and simplify processes. CONSTITUTION: A method is characterized in that two circulating apparatuses (4)(5) are installed between a desulfurization reactor and a regenerative reactor to prevent a backflow gas and to allow a solid to smoothly flow down. The desulfurization efficiency is improved by dispersing coal gas through a gas dispersion plate and bring a circulating solid(desulfurizing agent) into contact with gas uniformly. The apparatus can control the circulating amount of a solid between two reactors and does not use mechanical valves.
Patent KR-20000042744-A (KR)
Title: Method and apparatus for thermo-compression between tape carrier package and thin film micro-mirror array
Inventor: GONG YEONG JUN
IPC: H01L25/00
Filed: 1998-12-26
Abstract: PURPOSE: A method and an apparatus for automatically bonding a tape carrier package and a thin film micro-mirror array by thermo-compression technology are provided. CONSTITUTION: First, a thin film micro-mirror array(TMA) is loaded onto a TMA jig(110) centrally positioned on a work table(130). Second, a tape carrier package(TCP) is loaded onto a TCP jig(120) adjacent to the TMA jig(110). The work table(130) is then moved so that the TMA and the TCP may be located underneath a thermo-compression head(140). While an anisotropic conductive film(ACF) is interlaid between both sets of leads of the TMA and the TCP, the thermo-compression head(140) presses down the leads simultaneously with applying heat. Next, the thermo-compression head(140) is moved upward and then returned to a starting position so that the next TCP may be loaded. In this manner, a thermo-compression bonding process is carried out continuously and automatically.
Patent KR-20000045080-A (KR)
Title: Transmitter of dual mode communication device
Inventor: PARK JAE SEON
IPC: H04B1/02
Filed: 1998-12-30
Abstract: PURPOSE: A transmitter of a dual mode communication device, is provided to minimize power consumption in transmitting data by operating a supply current of a drive amp adaptively, according to each mode and an output power. CONSTITUTION: A transmitter of a dual mode communication device, comprises a base band processor(101), a modulator(103), an automatic gain controller(105), an up converter(107), a drive amp(201), a drive amp current controller(203), and antenna(119). The base band processor(101) responds to such as a transmit power control command from a base station, to generate a transmit power control signal, a mode signal, and a digital signal. The transmit power control signal is for adjusting a transmit output level. The modulator(103) demodulates the generated digital signal. The automatic gain controller(105) responds to the generated transmit power control signal, to control a gain of a signal generated from the modulator(103). The up converter(107) converts frequency band of a signal generated from the automatic gain controller(105), into a frequency of a transmit band. The drive amp(201) amplifies an output of the up converter(107). The drive amp current controller(203) responds to the transmit power control signal, to vary the supply current of the drive amp.
Patent KR-20000045154-A (KR)
Title: Device for controlling indoor temperature of vehicle
Inventor: KIM SEONG DEUK
IPC: B60H1/00
Filed: 1998-12-30
Abstract: PURPOSE: A controller of indoor temperature for a vehicle is provided to maintain the indoor temperature of vehicle at an appropriate temperature when it is a reserved time by reserving the time previously. CONSTITUTION: A control unit(116) cords a reserved time and a reserved temperature by feeding from the inputting unit of key(108) and receives a present time from the timer(104). When the present time and the reserved time are conformed by comparing, the control unit feeds an on-signal of starting into the starting unit(112) to start the vehicle. When a present temperature is lower than the reserved temperature by comparing each other, the control unit outputs a selecting signal to drive the driving unit of heater(102). When the present temperature is higher than the reserved temperature, the control unit outputs the selecting signal to drive the driving unit of air conditioner(100). When the present time from the timer(104) is passed a certain time interval than the reserved time from the storing unit(110), the control unit is fed a signal detected from the insertion detecting unit of starting key(114). When the starting key is detected, the control unit continuously feeds the on-signal of starting into the starting unit(112). And when the starting key is not detected, the control unit controls to feed an off-signal of starting into the starting unit(112).
Patent KR-20010008437-A (KR)
Title: Row redundancy circuit of memory device
Inventor: KIM YEON U
IPC: G11C29/00
Filed: 1998-12-30
Abstract: PURPOSE: A row redundancy circuit comprising a control circuit for selecting a normal word line and a redundancy word line without cutting off fuses in the row redundancy circuit is provided. CONSTITUTION: A row redundancy circuit in a semiconductor device includes a control circuit(D) for selecting a row redundancy word line without cutting off fuses by using a test signal when testing the semiconductor device. The control circuit has inverters(15-16) and a NOR gate. The control circuit inputs a test signal(TEST_Redun) and generates the first signal(Eval) and the second signal(Eval_NRE). When the test signal is a logic low, the first and second signals have the same voltage level. When the test signal is a logic high, the second signal becomes a logic low and then a redundancy word line is driven. When the first signal is a logic high and the second signal is a logic low, the redundancy word line only is forcibly driven regardless of a normal word line and a cut-off of the fuses.
Patent KR-19990037694-A (KR)
Title: 재조합 콘글루티닌 및 그의 제조 방법
IPC: A61K38/00
Filed: 1996-01-25
Abstract: Gly-Xaa-Xaa(배열번호:3, Xaa는 단백질 구성 아미노산이다)의 아미노산 배열을 2개 포함하는 6개의 아미노산으로 이루어지는 콜라겐 영역, 천연 콘글루티닌의 네크 영역 및 천연 콘글루티닌의 당쇄 인식 영역을 포함하며, 또한 항 바이러스 활성(중화 활성)을 가지며 의약품 용도로의 응용을 기대할 수 있는 재조합 콘글루티닌을 제공한다. 또한 인플루엔자 A 바이러스로 감염시킨 세포에, 만노스 결합 단백질(MBP) 혹은 사람의 만노스 결합 단백질(hMBP)을 작용시키고, 그 바이러스 감염 세포에서의 바이러스의 출아의 억제 레벨을 측정하는 공정을 포함한, 만노스 결합 단백질(MBP) 혹은 사람의 만노스 결합 단백질(hMBP)의 항 인플루엔자 A 바이러스 활성을 검출하는 방법을 제공한다. 항 인플루엔자 A 바이러스 활성을 갖는 만노스 결합 단백질(MBP) 및 사람의 만노스 결합 단백질(hMBP)이 개시되어 있다.
Patent KR-19990064105-A (KR)
Title: 아파판트를 활성 성분으로 함유한 점안 수용액
IPC: A61K31/5517
Filed: 1996-10-09
Abstract: 본 발명은 아파판트 및 첨가제를 함유한 점안 수용액 및 이온 강도를 0.05 이하로 저하시키므로써 점안 수용액중의 아파판트를 안정화시키는 방법에 관한 것이다.
Patent KR-19990071562-A (KR)
Title: 폐플라스틱을 오일로 전환시키는 장치
IPC: C10B53/07
Filed: 1996-11-21
Abstract: 본 발명은 폴리염화비닐을 미리 제거하지 않은 채, 폐플라스틱을 열분해 탱크 속으로 충전시킬 수 있는 폐플라스틱 액화 장치에 관한 것으로서, 조종하기가 쉽고, 생성되는 유독성 분해 가스들 및 산 성분들을 효율적으로, 그리고 저비용으로 제거할 수 있다.  상기 장치는 염소계 수지 및 질소계 수지를 함유할 수 있는 폐플라스틱을 열분해 오븐 속으로 충전시키는 폐플라스틱 충전 장치와, 그와 같이 충전된 폐플라스틱을 열적으로 분해시키는 열분해 오븐과, 열분해 오븐으로부터 발생된 오일 증기 및 분해 가스들을 물로 냉각시키는 냉각 칼럼과, 냉각에 사용된 물을 알카리로 중화시키는 중화 탱크와, 응축된 오일과 물을 분리시키는 오일-물 분리 탱크를 포함한다.
Patent KR-19990077181-A (KR)
Title: 모우터 구동제어
IPC: H02P6/10
Filed: 1997-01-09
Abstract: 본 발명은 다상 브러쉬레스 모우터(1)를 제어하기 위한 제어방법에 관한 것으로, 모우터 브릿지의 두 암의 상부 스위칭 장치(2, 3, 4)와 하부 스위칭 장치(5, 6, 7)가 보상 펄스폭 변조파형을 이용하여 구동되어 일측 암의 상부장치(2, 3, 4)가 ON 상태일 때에 하부장치(5, 6, 7)가 OFF 상태, 또는 그 반대가 된다. 다른 구성에 있어서, 상기 제어방법은 고속의 모우터 속도에서 이용되는 반면에 저속의 모우터 속도에서는 통상적인 변조방식이 이용되어 브릿지의 일측 암의 상부 스위칭 장치(2, 3, 4)가 ON 상태일 때에 브릿지의 타측 암의 하부 스위칭 장치(5, 6, 7)는 펄스폭 변조된다. 다른 관점에서 모우터 회전자의 위치를 계산하는 방법이 기술되어 있다.